How to enqueue javascript for WP Customize options sidebar?
Use the action customize_controls_enqueue_scripts: add_action( ‘customize_controls_enqueue_scripts’, ‘enqueue_customizer_scripts’ ); function enqueue_customizer_scripts() { wp_enqueue_script(); // fill in the details here } To add inline scripts in the header, use the action customize_controls_print_scripts. See wp-admin/customize.php for details.